Adjustable cross-bar for printers&#39; chases.



No. 848,363. I PATBNTBD MAR. 26, 1907.

J. E. GILBERT. ADJUSTABLE (moss BAR FOR PRINTERS GHASBS.

APPLIOATION FILED JULY 13, 1906.

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JAMES E. GILBERT, OF CHICAGO, ILLINOIS,

ASSIGNOR TO GILBERT, HARRIS & COMPANY, OF CHICAGO, ILLINOIS, ACORPORATION OF ILLINOIS.

ADJUSTABLE CROSS-BAR FOR PRINTERS CHASES.

Specification of Letters Patent.

iratenteol March 26, 1907.

a lication filed July 13,1906. Serial No. 326.080.

To all whom it may concern:

Be it known that I, JAMES E. GILBERT, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Adjustable Cross-Barsfor Printers Chases, of which the following is a specification.

My invention relates to cross-bars for printers chases; and the objectof my invention is to make an adjustable bar which can be placed over aprinters chase containing a form resting upon a printers stone for thepurpose of temporarily clamping the chase, so that it may be safelylifted and carried to the press, thereby doing away with the necessityof sliding the entire form off from the stone onto a carrying-board andthen sliding it back again onto the press, thereby causing the sliversof wood from the carrying board or frame to get into or interfere withthe type of the chase.

My invention consists in a device capable of accomplishing the aboveobjects, which can be cheaply made, which is not readily liable to getout of order, and in which it is possible to support type-plates in themiddle of the chase directly from the adjustable bar, thereby aiding thebar in its ordinary function.

My invention further consists in details of construction which will behereafter more fully described and claimed as the specificationproceeds.

Referring to the drawings, Figure 1 is a perspective view of a printerschase having the device of my invention applied thereto. Fig. 2 is aside elevation of the device of my invention. Fig. 3 is a plan view ofFig. 1. Fig. 4 is a sectional end view on the lines 4 4 of Fig. 3. Fig.5 is a sectional side view on the line 5 of Fig. 3, showing the detailsof the attachment for supporting a block in the chase directly from theadjustable bar.

Again referring to the drawings, Fig. 1 shows a printers chase 10,having within it cuts or other printed matter 11, 12, 13, 14, 15, 16,17, and 18. When a chase is of con siderable size, the frame 10 is notordinarily i of sufficient rigidity so that the type matter inside theframe can be so securely locked within the frame that the form can belifted from the composing-stone and press, and in order to assure suchcarried to the or other matter in safe lifting the upper ends of theserods 40 I screwit is desired to provide some means for clamping oppositesides of the chase between its ends together, which I accomplish bymeans of my bar, which consists of two blocks 20 and 21, connected by aT-bar or other suit able member 22. The block 20 has cut in its innerface a notch 24, and the block 21 has cut in it a corresponding notch25, the two notches 24 and 25 being so proportioned that a part of eachblock bears against the outside of the chase, while a substantialportion of the block is above the upper surface of the chase, as shown.The bar 22, heretofore remade integral with it or by any other suitablemeansas, for instance, the screws 26.

recess 30 in the block 21 at a height equal to the height of theopposite end of the bar above the top of notch 24. This block 21 may betemporarily rigidly secured to the bar 22 by means of the set-screws 32shown engaging the flanges 28 of the bar. The result of providing thenotches 24 and 25 and attached parts described is that the bar 22 is ofsufiicient height above the type-matter of the chase so that there is nointerference or rubbing between the two.

In order to cause the bar to tightly grasp the chase, I first, byadjusting the screw 32, move the device to the position shown in Fig. 1and then tighten horizontal set-screws 34, passing horizontally throughthe block 21 and bearing against the side of the chase, thereby pressingthe two opposite sides of the chase together. When this has been done,it is possible to safely lift the chase with the type-matter in it andmove the same from the stone to the press. WVhen the chase has beenremoved to the press, the operator either loosens the set-screws 32 or34, or both, and removes the bar. In order to further insure the safetyof the matter within the chase, I provide one or more adjustable riders36, made, preferably, in inverted-U- shape, as shown, to fit the T ofthe cross-bar 22, there being extended from the U proper horizontal arms37 and 38, as shown. In these horizontal arms 37 and 38 I provideopenings 39 in which fit depending rods 40, having hooks 41, adapted toengage suitable openings 42, preferably provided in the cuts theprinting-form. On

ferred to, is secured to the block 20 by being The bar 22 is slidinglymounted in a suitable thread thumb-nuts 42, so that by adjusting thesethumb-nuts the rods 40 may be brought to a sufiicient tension upon thehorizontal arms 37 and 38 to properly support the type or out matterwithin the chase. If desired, these special rods 40 may be dispensedwith and ordinary wood-screws 45 or equivalent mechanism may be passedthrough the openings 39 and screwed into convenient blank faces in theforms which do not contain printing matter; but this construction is notas satisfactory as the preferred. construction first described. As willbe seen by the drawings, these riders 36 may be moved along the bar 22to any point where it is desired to have the interior portion of thetype-form supported in the manner described; IVhen one or more oftheseriders' is used, as just described, it is manifestly necessary toremove them from contact with the type matter prior to the time that thebar proper is removed i'rom the chase, as heretofore described. Inpractice the rider described is usually connected to the parts of theform which form the margins, technically called furniture.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. In mechanism of the class described, an

adjustable cross-bar for printerschases consisting of two blocks notchedto rest upon and bear against opposite sides of a chase, a

connecting-bar between said blocks, detachably connected to one block,said bar being at such a height above the notches in the block that whenthe blocks are in proper position the bar clears the type in the chase,and means for detachably securing the bar I to the adjustable block. I2. In mechanism of the class described, an I adjustable cross-bar forprinters chases consisting of two blocks notched to rest upon and bearagainst opposite sides of a chase, a connecting-bar rigidly secured toone of said blocks and detachably connected to the other block, at suchaheight that when the blocks are in proper position the bar clears thetype in the chase, means for detachably securing the bar to theadjustable block, and means in one of said blocks for securing pressureagainst the adjacent side of the chase.

3. In mechanism of the class described in combination with an adjustablebar adapted to be secured to opposite sides of'a printers chase, a rideradjustably movable along'said bar and means for detachably securing aportion of the type-form within the printer s chase to said adjustablerider.

In witness whereof I have hereuntosubscribed my name in the presence oftwo witnesses.

JAMES E. GILBERT. lVitnesses HERMAN SAUTER, DWIGHT B. OHEEVER.

